https://www.socialeurope.eu/eu-takes-beating-italian-elections-will-ever-learn
http://oegfe.at/wordpress/wp-content/uploads/2017/05/OEGfE_Policy_Brief-2017.13.pdf
https://theconversation.com/como-se-ha-desarrollado-y-evolucionado-la-extrema-derecha-en-europa-215943